Created to look like a sunken periscope, UNDER's panoramic window room sits 15 feet under the sea. And to withstand the tumultuous weather conditions, the walls are constructed with 3 feet of concrete.

"Under’s namesake holds a double meaning: In Norwegian, “under” can just as well be translated into “wonder”," explains the project creators. "Half-sunken into the sea, the building’s monolithic form breaks the water surface to lie against the craggy shoreline. More than an aquarium, the structure will become a part of its marine environment, coming to rest directly on the sea bed five meters below the water’s surface."

UNDER can handle up to 100 diners at a time. And when it isn't being used as a restaurant, the facility will double as an ocean research center. Read the full project brief for UNDER here.